Scientific notation courseware ppt-Newcomer's Edition Mathematics Seven Courseware

The new man teaches mathematics seven "Science Notation Courseware" ppt has a story that the child of a rich man does not like to study, the rich man sends him to the school, saying that it is enough to learn accounting, so the teacher only teaches him to write Numbers, teach "one" on the first day, "two" on the second day, and "three" on the third day. On the fourth day, the child was out of school. The rich man asked his son why he didn't go. His son said he learned. So the rich man told him to keep accounts, and he was busy on the first day, because the names of the two debtors were "millions" and "tens of thousands", so the stupid boy wrote with a comb.

1). Heater: (controlled separately) A. Heater separately Set different temperature according material forming demand to insure product quality. Adjusted the voltage of heater by AC voltage meter which can insures the heater temperature steady and save power. B. Change the heater units fleetly. And it is economical for maintain because it only need change part units.

2). Controlling the heater unit separately can short the heating time and economize energy and improve product quality and reduce cost.

3). Adjustable frame: The side size clamping can be adjusted as the working required.

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